Supercell over Laramie
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Wyoming Snow Precipitation Update

United States Natural Resources Water and Climate Center Department of Conservation Portland, Oregon Agriculture Service S N O W - P R E C I P I T A T I O N U P D A T E Based on Mountain Data from NRCS SNOTEL Sites As of SATURDAY: MARCH 29 , 2014 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 23.4 14.7 159 24.5 19.9 123 BLACK BEAR 8170 39.1 35.4 110 36.7 36.1 102 BLIND BULL SUM 8650 35.5 21.8 163 22.8 18.5 123 COTTONWOOD CREEK 7670 30.4 20.9 145 33.2 23.3 142 EAST RIM DIVIDE 7930 17.4 9.8 178 15.2 11.2 136 GRAND TARGHEE 9260 47.5 35.4 134 35.1 28.7 122 GRANITE CREEK 6770 23.6 14.9 158 23.4 18.9 124 GRASSY LAKE 7265 38.4 31.3 123 36.3 34.2 106 GROS VENTRE SUMMIT 8750 14.3 12.6 113 14.4 12.2 118 GUNSIGHT PASS 9820 19.9 13.1 152 18.3 12.9 142 LEWIS LAKE DIVIDE 7850 35.5 29.3 121 -M 33.6 * PHILLIPS BENCH 8200 33.4 23.8 140 32.6 26.7 122 SALT RIVER SUMMIT 7760 17.9 12.7 141 18.8 15.8 119 SNAKE RIVER STATION 6920 -M 15.8 * -M 21.4 * SPRING CREEK DIVIDE 9000 34.6 22.4 154 31.5 22.6 139 THUMB DIVIDE 7980 17.7 15.1 117 16.0 17.5 91 TOGWOTEE PASS 9580 30.7 21.5 143 30.5 22.9 133 TWO OCEAN PLATEAU 9240 37.8 25.3 149 -M 25.8 * WILLOW CREEK 8380 39.7 27.0 147 39.5 31.6 125 YOUNTS PEAK 8350 -M 13.9 * -M 14.9 * ----- ----- Basin Index (%) 139 121 MADISON-GALLATIN BLACK BEAR 8170 39.1 35.4 110 36.7 36.1 102 CANYON 7870 14.0 12.2 115 15.5 15.2 102 MADISON PLATEAU 7750 22.7 21.1 108 22.7 24.9 91 WEST YELLOWSTONE 6700 12.9 10.2 126 14.6 13.3 110 WHISKEY CREEK 6800 16.2 14.8 109 18.8 19.1 98 ----- ----- Basin Index (%) 112 100 YELLOWSTONE BEARTOOTH LAKE 9360 29.8 20.7 144 27.8 18.5 150 BURNT MTN 5880 10.3 4.5 229 17.8 11.6 153 CANYON 7870 14.0 12.2 115 15.5 15.2 102 COLE CREEK 7850 20.5 13.0 158 14.4 11.7 123 EVENING STAR 9200 36.4 23.8 153 37.6 25.7 146 FISHER CREEK 9100 41.3 29.4 140 35.9 30.0 120 NORTHEAST ENTRANCE 7350 14.6 9.8 149 14.6 11.5 127 PARKER PEAK 9400 29.3 18.5 158 26.6 16.6 160 SYLVAN LAKE 8420 22.4 18.9 119 25.8 21.0 123 THUMB DIVIDE 7980 17.7 15.1 117 16.0 17.5 91 TWO OCEAN PLATEAU 9240 37.8 25.3 149 -M 25.8 * WHITE MILL 8700 31.9 21.3 150 27.3 22.4 122 WOLVERINE 7650 14.6 8.9 164 15.8 11.4 139 ----- ----- Basin Index (%) 145 129 WIND RIVER BURROUGHS CREEK 8750 -M 13.0 * -M 15.0 * CASTLE CREEK 8400 10.2 -M * 12.2 -M * COLD SPRINGS 9630 9.4 7.1 132 12.8 9.2 139 DEER PARK 9700 -M 14.3 * 18.2 18.3 99 HOBBS PARK 10100 14.5 13.0 112 12.8 12.1 106 KIRWIN 9550 18.0 9.1 198 16.6 10.7 155 LITTLE WARM 9370 14.2 10.1 141 16.5 12.0 138 OWL CREEK 8975 7.1 5.1 139 7.1 5.5 129 SOUTH PASS 9040 15.8 14.6 108 14.7 16.3 90 ST. LAWRENCE ALT 8620 4.6 6.7 69 7.9 8.2 96 TOGWOTEE PASS 9580 30.7 21.5 143 30.5 22.9 133 TOWNSEND CREEK 8700 7.5 8.8 85 8.7 11.0 79 ----- ----- Basin Index (%) 127 116 BIGHORN BASIN BALD MTN. 9380 24.0 17.8 135 18.6 15.9 117 BEAR TRAP MEADOW 8200 11.2 5.1 220 11.2 7.7 145 BONE SPRINGS DIV 9350 20.5 15.1 136 16.1 14.4 112 GRAVE SPRINGS 8550 12.5 8.6 145 12.4 9.7 128 KIRWIN 9550 18.0 9.1 198 16.6 10.7 155 MARQUETTE 8760 13.6 -M * 12.2 -M * MIDDLE POWDER 7760 17.0 10.8 157 13.8 10.8 128 OWL CREEK 8975 7.1 5.1 139 7.1 5.5 129 POWDER RIVER PASS 9480 15.4 9.8 157 16.4 11.6 141 SHELL CREEK 9580 18.8 14.0 134 16.1 12.8 126 TIMBER CREEK 7950 6.4 4.5 142 7.8 6.8 115 ----- ----- Basin Index (%) 151 129 SHOSHONE RIVER BLACKWATER 9780 30.4 21.7 140 27.4 19.2 143 EVENING STAR 9200 36.4 23.8 153 37.6 25.7 146 MARQUETTE 8760 13.6 -M * 12.2 -M * SYLVAN ROAD 7120 14.5 11.0 132 19.8 15.8 125 YOUNTS PEAK 8350 -M 13.9 * -M 14.9 * ----- ----- Basin Index (%) 144 140 POWDER RIVER BEAR TRAP MEADOW 8200 11.2 5.1 220 11.2 7.7 145 CLOUD PEAK RESERVOIR 9860 20.3 13.7 148 18.0 12.2 148 GRAVE SPRINGS 8550 12.5 8.6 145 12.4 9.7 128 HANSEN SAWMILL 8360 9.8 6.2 158 12.0 7.9 152 MIDDLE POWDER 7760 17.0 10.8 157 13.8 10.8 128 POWDER RIVER PASS 9480 15.4 9.8 157 16.4 11.6 141 SOLDIER PARK 8720 12.9 -M * 11.4 -M * ----- ----- Basin Index (%) 159 140 TONGUE RIVER BIG GOOSE 7990 12.2 8.4 145 14.3 10.1 142 BONE SPRINGS DIV 9350 20.5 15.1 136 16.1 14.4 112 BURGESS JUNCTION 7880 14.7 10.9 135 15.3 11.4 134 DOME LAKE 8880 15.3 11.2 137 14.1 12.5 113 LITTLE GOOSE 8870 13.7 -M * 16.5 -M * SUCKER CREEK 8880 17.3 11.2 154 18.5 13.2 140 TIE CREEK 6870 9.2 5.4 170 14.4 10.5 137 ----- ----- Basin Index (%) 143 129 BELLE FOURCHE COLE CANYON 5910 7.1 5.7 125 13.7 8.4 163 ----- ----- Basin Index (%) 125 163 CHEYENNE RIVER BASIN BLIND PARK 6890 8.5 7.2 118 16.1 11.0 146 NORTH RAPID CREEK 6130 9.1 6.7 136 14.6 9.0 162 ----- ----- Basin Index (%) 127 154 UPPER N. PLATTE ARAPAHO RIDGE 10960 26.2 19.3 136 26.1 20.8 125 BLACKHALL MTN 9820 36.3 -M * 27.9 -M * COLUMBINE 9160 34.7 22.3 156 -M 24.0 * DIVIDE PEAK 8880 18.7 19.1 98 21.5 20.1 107 JOE WRIGHT 10120 22.1 19.9 111 30.6 24.2 126 LAPRELE CREEK 8375 9.5 9.4 101 10.9 11.5 95 MED BOW 10500 8.3 -M * 35.4 -M * NORTH FRENCH CREEK 10130 34.9 27.3 128 32.4 25.2 129 NEVER SUMMER 10280 24.0 19.1 126 18.3 -M * OLD BATTLE 10000 32.7 28.6 114 34.8 32.9 106 RAWAH 9020 14.4 10.1 143 16.8 13.1 128 SAGE CREEK BASIN 7850 12.6 12.5 101 11.7 13.6 86 SAND LAKE 10050 33.1 26.7 124 31.4 23.1 136 SOUTH BRUSH CREEK 8440 12.2 12.1 101 14.2 14.2 100 TOWER 10500 49.9 42.7 117 -M 37.5 * WEBBER SPRINGS 9250 25.5 22.6 113 27.6 25.1 110 WILLOW CREEK PASS 9540 14.5 11.6 125 14.3 12.5 114 ZIRKEL 9340 40.8 26.2 156 -M 26.8 * ----- ----- Basin Index (%) 123 115 SWEETWATER DEER PARK 9700 -M 14.3 * 18.2 18.3 99 LARSEN CREEK 9000 13.4 11.9 113 15.2 -M * SOUTH PASS 9040 15.8 14.6 108 14.7 16.3 90 ----- ----- Basin Index (%) 110 95 LOWER N. PLATTE CASPER MTN. 7900 17.7 12.9 137 15.3 13.7 112 LAPRELE CREEK 8375 9.5 9.4 101 10.9 11.5 95 RENO HILL 8400 17.6 12.8 138 19.5 14.1 138 WINDY PEAK 7900 9.2 7.7 119 11.6 9.8 118 ----- ----- Basin Index (%) 126 117 LARAMIE RIVER BROOKLYN LAKE 10240 30.8 19.1 161 28.3 19.6 144 CINNABAR PARK 9574 23.6 19.6 120 29.0 22.7 128 CROW CREEK 8330 7.0 6.8 103 11.4 9.9 115 DEADMAN HILL 10220 24.2 15.1 160 22.7 16.0 142 RAWAH 9020 14.4 10.1 143 16.8 13.1 128 ROACH 9700 20.6 15.0 137 23.3 17.9 130 ----- ----- Basin Index (%) 141 133 S. PLATTE BLACK MOUNTAIN 8920 12.5 -M * -M -M * CROW CREEK 8330 7.0 6.8 103 11.4 9.9 115 DEADMAN HILL 10220 24.2 15.1 160 22.7 16.0 142 ----- ----- Basin Index (%) 142 132 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 11.2 10.9 103 16.3 14.2 115 DIVIDE PEAK 8880 18.7 19.1 98 21.5 20.1 107 ELK RIVER 8700 21.3 18.0 118 21.6 18.9 114 LITTLE SNAKE RIVER 8915 30.8 22.3 138 33.6 27.8 121 OLD BATTLE 10000 32.7 28.6 114 34.8 32.9 106 SAGE CREEK BASIN 7850 12.6 12.5 101 11.7 13.6 86 SANDSTONE RS 8150 11.7 13.1 89 17.2 17.4 99 WHISKEY PARK 8950 40.2 25.0 161 38.5 26.4 146 ----- ----- Basin Index (%) 120 114 UPPER GREEN RIVER BIG SANDY OPENING 9080 15.3 12.2 125 14.3 12.5 114 BLIND BULL SUM 8650 35.5 21.8 163 22.8 18.5 123 EAST RIM DIVIDE 7930 17.4 9.8 178 15.2 11.2 136 ELKHART PARK G.S. 9400 17.5 11.7 150 16.1 12.6 128 GROS VENTRE SUMMIT 8750 14.3 12.6 113 14.4 12.2 118 GUNSIGHT PASS 9820 19.9 13.1 152 18.3 12.9 142 KENDALL R.S. 7740 22.4 11.3 198 22.8 13.6 168 LOOMIS PARK 8240 24.6 14.4 171 24.2 16.4 148 NEW FORK LAKE 8340 16.1 10.2 158 13.5 10.2 132 POCKET CREEK 9360 12.5 -M * 12.3 -M * SNIDER BASIN 8060 20.1 11.8 170 19.0 13.4 142 SPRING CREEK DIVIDE 9000 34.6 22.4 154 31.5 22.6 139 TRIPLE PEAK 8500 35.0 21.1 166 36.3 24.0 151 ----- ----- Basin Index (%) 158 138 LOWER GREEN RIVER BLACKS FORK JCT 8870 8.4 -M * 12.8 -M * BUCK PASTURE 9700 14.4 -M * 15.7 -M * EF BLACKS FORK GS 9360 9.7 -M * 9.6 -M * HAMS FORK 7840 16.5 10.6 156 13.5 10.8 125 HEWINTA 9519 10.8 10.4 104 13.4 13.1 102 HICKERSON PARK 9145 7.3 7.2 101 8.4 9.4 89 HOLE-IN-ROCK 9150 6.6 7.0 94 8.7 8.9 98 INDIAN CREEK 9425 31.7 23.2 137 25.8 21.3 121 KELLEY R.S. 8180 18.7 14.7 127 20.5 17.2 119 SPIRIT LK 10235 9.2 -M * 12.4 -M * STEEL CREEK PARK 10200 18.6 14.6 127 15.4 15.3 101 ----- ----- Basin Index (%) 126 110 UPPER BEAR RIVER BEAR RIVER RS 8777 9.9 -M * 11.8 -M * BUG LAKE 7950 22.9 17.9 128 19.8 18.3 108 BURTS MILLER RANCH 8000 7.5 -M * 6.7 -M * CHALK CREEK #1 8993 21.8 22.7 96 21.6 23.6 92 HAYDEN FORK 9212 16.2 14.8 109 19.5 19.7 99 KELLEY R.S. 8180 18.7 14.7 127 20.5 17.2 119 LILY LAKE 9156 13.5 11.9 113 14.5 16.0 91 MONTE CRISTO 8960 26.4 25.6 103 24.1 24.5 98 SALT RIVER SUMMIT 7760 17.9 12.7 141 18.8 15.8 119 ----- ----- Basin Index (%) 114 103 ----------------------------------------------------------------------------- -M = Missing data * = Data may not provide a valid measure of conditions. Units = inches for the Current and Normal Snow Water Equivalent and Total Precipitation values If the Basin Index (%) value is flagged as potentially invalid, care should be taken to evaluate if the value is representative of conditions in the basin. The SNOW WATER EQUIVALENT Percent of Median represents the snow water equivalent found at selected SNOTEL sites in or near the basin compared to the Median value for those sites on this day. The TOTAL PRECIPITATION Percent of Average represents the total precipitation (beginning October 1st) found at selected SNOTEL sites in or near the basin compared to the Average value for those sites on this day. Contact your state water supply staff for assistance. Medians and averages are calculated for the period 1981-2010. Provisional data, subject to revision. * Site -- Either: (a) the current value is missing; (b) the median or average for the day is not available or is zero; or (c) for snow water equivalent, the median for the day is less than 10% of the maximum median value for the year. * Basin - More than half of the sites within the basin are flagged with *, preventing the calculation of a meaningful basin index. The basin index is calculated as the sum of the valid current values divided by the sum of the corresponding medians (for snow water equivalent) or averages (for precipitation) and the resulting fraction multiplied by 100. ---------------------------------------------------------------------------- -M = Missing data * = Data may not provide a valid measure of conditions. Units = inches for the Current and Normal Snow Water Equivalent and Total Precipitation values If the Basin Index (%) value is flagged as potentially invalid, care should be taken to evaluate if the value is representative of conditions in the basin. The SNOW WATER EQUIVALENT Percent of Median represents the snow water equivalent found at selected SNOTEL sites in or near the basin compared to the Median value for those sites on this day. The TOTAL PRECIPITATION Percent of Average represents the total precipitation (beginning October 1st) found at selected SNOTEL sites in or near the basin compared to the Average value for those sites on this day. Contact your state water supply staff for assistance. Medians and averages are calculated for the period 1981-2010. Provisional data, subject to revision. * Site -- Either: (a) the current value is missing; (b) the median or average for the day is not available or is zero; or (c) for snow water equivalent, the median for the day is less than 10% of the maximum median value for the year. * Basin - More than half of the sites within the basin are flagged with *, preventing the calculation of a meaningful basin index. The basin index is calculated as the sum of the valid current values divided by the sum of the corresponding medians (for snow water equivalent) or averages (for precipitation) and the resulting fraction multiplied by 100.